商家通过交易模板构造好一个tx，发给客户，客户填上待支付的UTXO 再回传给商户，商户将tx广播给约定矿工，矿工验证tx有效并通知商户后，商户发货。
以上过程，好像与SPV（简单支付验证）没什么关系，商户的钱包好象也不需要存储区块头。有什么问题么？
What the chain says
- Block
- 639 053
- Time
- 2020-06-12T13:06:12Z
- Signer
- 13ffuUAAnk3WPa1MtQCgzJGeKi6nTuZoPJ
- App
- twetch
- Type
- post
- Content type
- text/plain
- Name in tx
- twetch#2083
Fields the transaction did not carry are omitted. Open the payload to see the bytes as stored.
Signed by
13ffuUAAnk3WPa1MtQCgzJGeKi6nTuZoPJ Verified